夏季当心“冰箱杀手”李斯特菌

Core Viewpoint - The recent news regarding Listeria infection from consuming frozen meat has raised public awareness about the risks associated with food safety, particularly in summer when refrigerator usage increases [1] Group 1: Characteristics of Listeria - Listeria monocytogenes is a highly resilient foodborne pathogen known for its ability to survive in cold temperatures, including -20°C, making refrigerators a suitable environment for its growth [2] - It can thrive in dry and high-salt conditions and is commonly found in soil, water, decaying vegetation, and animal feces, leading to potential contamination in the food supply chain [2] Group 2: Health Risks Associated with Listeria - Infection can lead to severe health issues such as meningitis and encephalitis, particularly affecting vulnerable populations like the elderly, pregnant women, and immunocompromised individuals [3] - Pregnant women face significantly higher risks, including miscarriage, stillbirth, and neonatal sepsis due to Listeria's ability to cross the placental barrier [3] Group 3: Prevention Measures - To prevent Listeria infection, it is crucial to maintain refrigerator temperatures below 4°C for the cooling compartment and -18°C for the freezing compartment, along with regular cleaning [4] - It is recommended to separate raw and cooked foods in the refrigerator and adhere to the "74°C heating rule" to ensure thorough cooking of potentially contaminated foods [4] - High-risk groups should avoid consuming unpasteurized soft cheeses and undercooked ready-to-eat meats, and seek medical attention if symptoms arise [5]